The HTTP extension eases handling of HTTP URLs, dates, redirects,
headers and messages in a HTTP context (both incoming and outgoing).
It also provides means for client negotiation of preferred language
and charset, as well as a convenient way to exchange arbitrary data
with caching and resuming capabilities.

Also provided is a powerful request and parallel interface (PHP 5+),
if the extension is built with cURL support.

Additionally to the API reference in this manual you can find
information about how to install and configure as well as
which global constants are predefined in the following sections:

User Contributed Notes 1 note

If you install the module via pecl today, you get v2.4.3 of the module or newer. The API of v2.* is completely different than that shown here. It's very important that you follow the link shown in the documentation here to reach the correct documentation. Hopefully that documentation will appear here on php.net soon.